Remington shavers are legendary for their ability to provide a quick, close shave. SP19 replacement shaving heads and cutters can restore top performance to your electric razor with little effort thanks to their easy-to install design. Your Remington MicroFlex rotary shaver does a tip-top job day after day easily and comfortably. Your shaving heads sharpen themselves as they run, but after a time (typically 12 to 18 months), they can begin to dull. You may notice that it takes longer to shave, that you have to move the shaver in more directions, or that it feels like the hairs are being pulled. These signs are a clear indication that it is time to replace your worn heads with genuine Remington SP-19 replacement shaving heads.